Function addition to do conversions from and to sftime class

[eva0marques]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 79.81651% with 22 lines in your changes are missing coverage. Please review.

Project coverage is 93.73%. Comparing base (37ba1fe) to head (facad6d).

❗ Current head facad6d differs from pull request most recent head 4964777. Consider uploading reports for the commit 4964777 to get more accurate results

Files	Patch %	Lines
R/manipulate_spacetime_data.R	79.81%	22 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #17      +/-   ##
==========================================
- Coverage   94.45%   93.73%   -0.73%     
==========================================
  Files           6        6              
  Lines        2182     2281      +99     
==========================================
+ Hits         2061     2138      +77     
- Misses        121      143      +22     

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